Desktop Color, ContinuedImage captureThe three types of image capture are line art, grey scale, and color.LINE ART: Line art is images that are either black or white and have nogradations in tone. Line art scanners record black as one bit and white asone bit. This is called one-bit or bilevel scanning. Simulating halftones inthe scanned image is known as dithering.GREY SCALE: Grey scale scanning is for continuous-tone art. The scannerassigns grey levels based on the light that reflected from or passing throughthe original image. Increasing bits per pixel (pixel depth) increases thenumber of greys recorded and proportionally increases file size. Eight-bitscanners produce 256 levels of grey.COLOR: Desktop color scanners usually allow 8 bits per spectral primaryand 8 bits for black totaling 24 bits of information per pixel. This creates apalette with more than 16 million available colors. Color monitors should becapable of displaying 24 bit color. Convert images scanned as 24 bit color to8 bits before displaying the image on monitors incapable of displaying 24 bitcolor.Color monitorsColor monitors display images and text while you work in the document.The resolution and accuracy of a desktop system depends heavily on thequality of monitor. Monitor resolution is defined by dpi (MAC) or pixels(PC).Screen size is measured diagonally across the monitor face. Largemonitors that display a full page or a two-page spread horizontally are idealfor the DM and this type of monitor accuracy is often called WYSIWYG(pronounced whizzywig), an acronym for What You See Is What You Get.WYSIWYG monitors and appropriate software allow the DM to create andcorrect art and copy with unparalleled accuracy. What you see on thehorizontally oriented screen is exactly what the hard copy should look like.Vertically oriented monitors are called portrait monitors.2-37